What is it

Amazon advertising API is mainly use for searching amazon products in different categories, or “nodes”.

Limitation

There is restriction on the API, it will return only 10 products on each search.
Each search have a cool-down for 1 second.
Amazon allow you to set a start price and end price to filter the products.

What should you do if client want to get all items on Amazon?

Not likely. If there are 20 products between $0.10 and $0.11, amazon will only return the first 10 product. And you can’t further limit the price filter.

Deal with nodes

When searching with nodes, it’s better to know what your target is. Here’s a website good for finding out the nodes.
http://www.isoldwhat.com